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Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of TiI4MnMgCl6WCl6FeCuAlF7AuHgBr4CoSiS3NaAgBrIKCaPO4CaKLiCHOBNS is 3107.5837 g/mol

Convert between TiI4MnMgCl6WCl6FeCuAlF7AuHgBr4CoSiS3NaAgBrIKCaPO4CaKLiCHOBNS weight and moles
CompoundMolesWeight, g
TiI4MnMgCl6WCl6FeCuAlF7AuHgBr4CoSiS3NaAgBrIKCaPO4CaKLiCHOBNS

Elemental composition of TiI4MnMgCl6WCl6FeCuAlF7AuHgBr4CoSiS3NaAgBrIKCaPO4CaKLiCHOBNS
ElementSymbolAtomic weightAtomsMass percent
TitaniumTi47.86711.5403
IodineI126.90447520.4185
ManganeseMn54.93804511.7679
MagnesiumMg24.305010.7821
ChlorineCl35.4531213.6903
TungstenW183.8415.9159
IronFe55.84511.7971
CopperCu63.54612.0449
AluminumAl26.981538610.8682
FluorineF18.998403274.2795
GoldAu196.96656916.3383
MercuryHg200.5916.4549
BromineBr79.904512.8563
CobaltCo58.93319511.8964
SiliconSi28.085510.9038
SulfurS32.06544.1273
SodiumNa22.9897692810.7398
SilverAg107.868213.4711
PotassiumK39.098322.5163
CalciumCa40.07822.5794
PhosphorusP30.97376210.9967
OxygenO15.999452.5743
LithiumLi6.94110.2234
CarbonC12.010710.3865
HydrogenH1.0079410.0324
BoronB10.81110.3479
NitrogenN14.006710.4507

Computing molar mass step by step

First, compute the number of each atom in TiI4MnMgCl6WCl6FeCuAlF7AuHgBr4CoSiS3NaAgBrIKCaPO4CaKLiCHOBNS:
Ti: 1, I: 5, Mn: 1, Mg: 1, Cl: 12, W: 1, Fe: 1, Cu: 1, Al: 1, F: 7, Au: 1, Hg: 1, Br: 5, Co: 1, Si: 1, S: 4, Na: 1, Ag: 1, K: 2, Ca: 2, P: 1, O: 5, Li: 1, C: 1, H: 1, B: 1, N: 1

Then, lookup atomic weights for each element in periodic table:
Ti: 47.867, I: 126.90447, Mn: 54.938045, Mg: 24.305, Cl: 35.453, W: 183.84, Fe: 55.845, Cu: 63.546, Al: 26.9815386, F: 18.9984032, Au: 196.966569, Hg: 200.59, Br: 79.904, Co: 58.933195, Si: 28.0855, S: 32.065, Na: 22.98976928, Ag: 107.8682, K: 39.0983, Ca: 40.078, P: 30.973762, O: 15.9994, Li: 6.941, C: 12.0107, H: 1.00794, B: 10.811, N: 14.0067

Now, compute the sum of products of number of atoms to the atomic weight:
Molar mass (TiI4MnMgCl6WCl6FeCuAlF7AuHgBr4CoSiS3NaAgBrIKCaPO4CaKLiCHOBNS) = ∑ Counti * Weighti =
Count(Ti) * Weight(Ti) + Count(I) * Weight(I) + Count(Mn) * Weight(Mn) + Count(Mg) * Weight(Mg) + Count(Cl) * Weight(Cl) + Count(W) * Weight(W) + Count(Fe) * Weight(Fe) + Count(Cu) * Weight(Cu) + Count(Al) * Weight(Al) + Count(F) * Weight(F) + Count(Au) * Weight(Au) + Count(Hg) * Weight(Hg) + Count(Br) * Weight(Br) + Count(Co) * Weight(Co) + Count(Si) * Weight(Si) + Count(S) * Weight(S) + Count(Na) * Weight(Na) + Count(Ag) * Weight(Ag) + Count(K) * Weight(K) + Count(Ca) * Weight(Ca) + Count(P) * Weight(P) + Count(O) * Weight(O) + Count(Li) * Weight(Li) + Count(C) * Weight(C) + Count(H) * Weight(H) + Count(B) * Weight(B) + Count(N) * Weight(N) =
1 * 47.867 + 5 * 126.90447 + 1 * 54.938045 + 1 * 24.305 + 12 * 35.453 + 1 * 183.84 + 1 * 55.845 + 1 * 63.546 + 1 * 26.9815386 + 7 * 18.9984032 + 1 * 196.966569 + 1 * 200.59 + 5 * 79.904 + 1 * 58.933195 + 1 * 28.0855 + 4 * 32.065 + 1 * 22.98976928 + 1 * 107.8682 + 2 * 39.0983 + 2 * 40.078 + 1 * 30.973762 + 5 * 15.9994 + 1 * 6.941 + 1 * 12.0107 + 1 * 1.00794 + 1 * 10.811 + 1 * 14.0067 =
3107.5837 g/mol


Mass percent compositionAtomic percent composition

Formula in Hill system is CHAgAlAuBBr5Ca2Cl12CoCuF7FeHgI5K2LiMgMnNNaO5PS4SiTiW

Computing molar mass (molar weight)

To calculate molar mass of a chemical compound enter its formula and click 'Compute'. In chemical formula you may use:
  • Any chemical element. Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al.
  • Functional groups: D, T, Ph, Me, Et, Bu, AcAc, For, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg
  • parenthesis () or brackets [].
  • Common compound names.
Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, nitric acid, potassium permanganate, ethanol, fructose, caffeine, water.

Molar mass calculator also displays common compound name, Hill formula, elemental composition, mass percent composition, atomic percent compositions and allows to convert from weight to number of moles and vice versa.

Computing molecular weight (molecular mass)

To calculate molecular weight of a chemical compound enter it's formula, specify its isotope mass number after each element in square brackets.
Examples of molecular weight computations: C[14]O[16]2, S[34]O[16]2.

Definitions

  • Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
  • Mole is a standard scientific unit for measuring large quantities of very small entities such as atoms and molecules. One mole contains exactly 6.022 ×1023 particles (Avogadro's number)

Steps to calculate molar mass

  1. Identify the compound: write down the chemical formula of the compound. For example, water is H2O, meaning it contains two hydrogen atoms and one oxygen atom.
  2. Find atomic masses: look up the atomic masses of each element present in the compound. The atomic mass is usually found on the periodic table and is given in atomic mass units (amu).
  3. Calculate molar mass of each element: multiply the atomic mass of each element by the number of atoms of that element in the compound.
  4. Add them together: add the results from step 3 to get the total molar mass of the compound.

Example: calculating molar mass

Let's calculate the molar mass of carbon dioxide (CO2):

  • Carbon (C) has an atomic mass of about 12.01 amu.
  • Oxygen (O) has an atomic mass of about 16.00 amu.
  • CO2 has one carbon atom and two oxygen atoms.
  • The molar mass of carbon dioxide is 12.01 + (2 × 16.00) = 44.01 g/mol.

Lesson on computing molar mass

Weights of atoms and isotopes are from NIST article.

Related: Molecular weights of amino acids

molecular weights calculated today
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